He mentions it a few times in his book. On Page 200 for example. He says it is an 800-fill power with 5" of loft. Elsewhere in the book he mentions that it is 25 oz. Anyone know what he is referring to? I know that it is fairly heavy by some standards, but with 5" of loft, cold shouldn't be a problem anymore.

I got my twins the GoLite UltraLite 20 quilts. (I had the 1st gen Ultra 20 and while I liked the size and comfort a lot I was not impressed with the rating or loft.) Here are the notes I took when I got them.

The down seems to be all there now. After only ten minutes out of the tight packaging it was lofted up to 5 inches when doubled over itself. I like the new color, my son is going to love it. The Pertex Eco Arid Zone seems to be a little more crinkly feeling (and sounding) than the 1st gen Pertex Endurance fabric.

I am out the door in a few minutes to try the ankle out with a real (short, light) hike again. Yay!

The old model had the issues with rating being too optimistic. These ones should be good with the actual 2-1/2" of one-sided loft going off my other quilts. (I have not had the kids out at 20F in them.)

I picked one up for my son in reg length and it came in at 24.5oz with a listed fill weight of a bit over 14 oz. Very nice bag for the money and should be good to 20f for most folks. We were out this past weekend and he complained of being too warm at around freezing.

I have an older large GoLite 20 that I got on a basement sale at a local outfiter. It comes in at 13oz and 2 1/2 inches of loft. I have taken it down to 30 with no extra insulation and was still hot in the morning when wraped up in it. my only complaint is that I am a side sleeper and have a hard time keeping it wrapped fully around me. the new ones look to have that problem fixed with extra padding but with extra weight.